Dehydrozingerone Inspired Discovery of Potential Broad-Spectrum Fungicidal Agents as Ergosterol Biosynthesis Inhibitors
作者:Xiangmin Song、Xinyue Zhu、Ting Li、Cai Liang、Meng Zhang、Yu Shao、Jun Tao、Ranfeng Sun
DOI:10.1021/acs.jafc.9b04231
日期:2019.10.16
were synthesized, and their fungicidal activities and action mechanism against Colletotrichum musae were evaluated. The bioassay result showed that most compounds exhibited excellent fungicidal activity in vitro at 50 μg mL–1. Compounds 13, 16, 18, 19, and 27 exhibited broad-spectrum fungicidal activity; especially, compounds 19 and 27 were found to have more potent fungicidal activity than azoxystrobin
一系列脱氢姜油酮衍生物的合成,和它们的杀真菌活性和对抗作用机理炭疽病musae进行评价。生物测定结果表明,大多数化合物在50μgmL –1的体外显示出优异的杀真菌活性。化合物13,16,18,19,和27显示出广谱的杀真菌活性; 特别地,发现化合物19和27比嘧菌酯具有更强的杀真菌活性。化合物19和27的EC 50值相对于茄子枯萎病菌分别为0.943和0.161μgmL –1。此外,化合物27对米黄单胞菌(Panthomonas oryzae) PV显示出显着的体外杀菌活性。米曲霉,用EC 50值的11.386微克毫升-1,它的疗效(49.64%)和对水稻白叶枯病保护效果(51.74%)(分别为42.90%,40.80%)为等同于菌素的。化合物27还可以在体内有效控制灰霉病(87.10%,200μgmL –1)和水稻鞘枯病(100%,200μgmL –1 ; 82.89%,100μgmL